Figure 5

Threshold for transmission-level genomic relatedness. Dots indicate pairwise core hqSNP difference ratios between neighbors in the minimum spanning tree of the entire WGS cohort, ordered by increasing value. The threshold for transmission-level genomic relatedness was placed at ≤0.03% (y-axis), separating the MSSA neighbors into two groups as indicated by the vertical dashed line. Abbreviations: hqSNP: high quality single nucleotide polymorphism; MST: minimum spanning tree; WGS: whole-genome sequencing; MSSA: methicillin-susceptible S. aureus.